ok, So I go away for a few days only to come home to a sea of peach fuzz type mold growing over the soil in my potted trees that i have inside during the winter to grow a bit. I will add the fact that before i went away I treated them to a very liberal bath of mosquito dunks to rid them of gnats, well, no more gnats but now mold is present. I'll be off to home depot in the am for some fungicide,,,,, does it ever end? ughhhhhhh.

I had the same thing happen to me when I took my HC out of semi-cold storage monday.
I sprinkled cinnamon on top of the soil (which has a natural mold/mildew inhibitor in it) and it was gone in a few days.

I am wondering is a "tea" made from sphagnum moss and water, in the blender, and sprayed on them would kill the mold?

may have to scrape the top soil and replace it. watering, only pushes the mold further down into the roots.  I had that when I had my gnat invasion, itwas all at once, so I put a few cups in my porch, until I could figure out what happened, and one by one I cleaned, replaced soil, many dead cuttings and lots of waste soil/perlite, so I cooked the soil in the microwave... and let it dry completely...the mold is gone.

Keep in mind that if you can see mold then that means the entire substrate is completely inoculated.  In any event, most mold isn't actually harmful to our plants.  

Jon, a Tea made from *fresh* bright green sphagnum in the blender with warm water would definitely do work on any mold.

i have seen few of those, i have been using peroxide. so far it seems to be helping.

I have my "tea" from moss brewing as I type this, thanks for the suggestions everyone. I'll keep you posted.

So let's say I have a cutting in the humidity bin under grow lights, and I notice a very tiny amount of fuzz on the tip.  If I remove the humidity, yet keep it under the lights, will the mold dry up and cease?  I 'think' it's working, but hasn't been long enough to be sure.  Any experiences?

during spring rooting, i move things along as fast as possible. the reason being i want me cuttings in cup/1 gal container and outdoor as soon as possible so they will get fresh air and sun. fresh air and sun will get rid of the mold in a hearbeat. i'm sure being out of humidity bin and under grow light will do similar thing. this is my first time doing winter rooting and i have been lucky so far. when i see mold, i wipe it off with clorox wipe, then spray it with peroxide. so far so good. also since most of my cuttings are now in cup and have good set of top, i air out the bin few hours a day and increasing air out time.

I tried boiling sphagnum and water and it seemed to weaken the natural chemicals in the moss.
maybe just soaking the moss in room temp water will be effective.
But, adding the cinnamon more than tripled it's potency.
a small squirt of liquid dish detergent added as a surfactant helped a lot.

What do you think about a top dressing of moss?  I know it would also keep moisture in, but the anti mold properties may outweigh the moisture.

I think Joann might be on to something. That makes sense since the moss is anti mold to begin with, and when you water the plant it should bring it into the soil. Hmmmmmm

Way ahead of Jo-ann on the moss thing, as I blended up the moss I poured the whole concoction of water and ground up moss on each tree that has the mold thinking that any watering in the future should also put more anti mold features into the soil.I'll keep you all posted.